Why is my Computer Loud?
The two biggest culprits for excess noise in computers are fans and the hard disk. Fans are used to move the heat produced by the processor, motherboard, and graphics card out of the computer. If the fans are loose, too small, or not powerful enough, they can create noise. Hard disks can also make noise as the platters spin and the head seeks data. Loud noise is generally a very bad sign and should be dealt with immediately.
As computers age, they acquire dust, pet hair, and lint, which can block fans from running efficiently. Parts can also come loose, or just wear out, increasing vibrations and noise.
How to solve this
First Solution Make sure there are rubber feet on the bottom of the computer and that they are resting on a flat surface. If the rubber feet are missing, you can get replacements, or put the computer on a soft surface. If the room is warm or the computer is otherwise overheating, there are cooling pads that can help cool the computer and absorb some of the sound and vibrations.
Second Solution If the easy solutions didn’t help the situation, you’ll need to dive deeper. Take the back off your computer and check all the attachments; screws, gaskets, and grommets. If there are any screws loose, tighten them. Replace any worn or missing gaskets and grommets . While you have the back off your computer, use a soft brush and a can of compressed air to blow the dust out of the computer. Don’t force the compressed air into the fans, it can damage them. Carefully blow the air around the fans.
If the source of the noise is the hard disk, consider upgrading to a solid state drive (SSD). If your hard drive is making anything more than occasional clicks, there’s a good chance that the hardware is failing. It’s important to move your data before the drive fails, or it could be unrecoverable.
Third Solution If the steps above don’t help, you’ll need to get serious. Replace your old fans with large new fans. You must know the physical size of the fans you currently have to order new fans that are the same size. This ensures that they will fit into the space necessary. Whenever possible, order a fan that will move more air and has a lower decibel rating.
If your power supply is overheating, likely because it can’t handle the additional load of upgraded components, consider a new power supply with a fan to help with cooling.
You can also add sound insulation to your computer. You must be very careful about this, however, as adding insulation can also result in more heat trapped, causing the fans to work harder.
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